<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>background</title>
	<style type="text/css">
		body{
			/*background:  url(./money.png) 0 0;*/
		}
		/*div{
			width: 100%;
			background: rgba(200,200,200,0.5); url() 0 0 no-repeat;
		}*/
		li{
			width: 50px;
			height: 50px;
			list-style: none;
			margin-top: 5px;
			background: gray url() 0 0 no-repeat;
		}
		.box1{
			background:  url(./money.png);
			/*background-position: center;*/
		}
		.box2{
			background:  url(./money.png) center no-repeat;
		}
		.box3{
			background: rgba(255,32,24,0.5) url(./money.png) 0 0 no-repeat;
			-webkit-background-size: cover;
			background-size: cover;
		}
		.box4{
			background:  url(https://static.360buyimg.com/devfe/toolbar/1.0.0/css/i/toolbars.png) 0 0 no-repeat;
		}
	</style>
</head>
<body>
	<div></div>
	<ul>
		<li class="box1"></li>
		<li class="box2"></li>
		<li class="box3"></li>
		<li class="box4"></li>
	</ul>
</body>
</html>